James n



(No Model 3 J. N. PADDOCK.

HYDRAULIC ENGINE.

No. 586,202. Patented July 13,1897.

NrED STATES ArENr EErcE.

JAMES N. PADDOOK7 OF ATLANTIC I-IIGI-ILANDS, NEW JERSEY, ASSIGNOR, BYMESNE ASSIGNMENTS, TO NORMAN A. JOHNS, OF HUNTINGTON,

VERMONT.

HYDRAULIC ENGINE.

SPECIFICATION forming part of Letters Patent No. 586,202, dated July 13,1897. Application filed May 29, 1894. Renewed December 14, 1896. SerialNo. 615,711. (No model.)

To all whom, t may concern:

Be it known that I, JAMES N. PADDOCK, a citizen of the United States,residing at Atlantic Highlands, in the county of Monmouth, State of NewJersey, have invented certain new and useful Improvements in I-IydraulicEngines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will Aenable others skilledin the art to which it appertains to make and use the same.

Thisinvention is an improved hydraulic engine, the object being toprovide a novel form of exhaust-valve and also improved means foroperating the same.

My invention consists in certain details of construction and noveltiesof combination,a1l of which will he fully described hereinafter andpointed out in the claims.

In the drawings, Figure l is a top plan view of a double-cylinder engineembodying my invention, one of the cylinders being shown in sections.Fig. 2v is a detail view of the valve and its seat. Fig. 3 is a detailside View showing the valve-operating mechanism. Fig. 4 is a view fromthe interior.

Though I have shown myinvention applied to a double engine, it isobvious that it can be made single and that the various parts are thesame in each section, and a description of one section will suffice forthe entire machine.

In constructing an engine in accordance with my invention I employ acylinder A, having supplemental chambers A A at each end, into which thewater from the cylinder exhausts. A valve-chest Bis arranged at one sideof the cylinder A and communicates therewith through the medium of theinletports a a, and working past these ports is the slide-valve O,mounted upon the stem O', which stem in turn is connected with a pitman\c2, connected with the rotary driven shaft D. A piston E is arrangedwithin the cylinder upon a rod E', said rod being connected with thecross-head E2, sliding in ways E3, said cross-head being connected tothe end of a pitman E4, which in turn is attached to the crank-arm E5 ofthe powershaft D. At each end of the cylinder is arranged a valveseat F,having radial exhaust-ports f, and

mounted upon said seats are the vibratory valves G, having radialopenings g, adapted to register with the ports of the valve-seats. Tooperate these valves alternately as the piston approaches them, I employan arm II, mounted upon the ends of the shafts II/,which projecttransversely through the side of the cylinder into the same. The arms IIseat in recesses g in -the valve S, and as the shafts H I-I rock backand forth the valves are shifted alternately to open and close theports, so that as the piston approaches the valve it opens, and viceversa.

Upon the outer ends of the shafts I-I' are the arms H2, connected by arod H3, so that they operate simultaneously, and the moment one isopened the opposite one is closed. To operate the arms H2 and shaftsI-I, I employ the shifting rod K, provided With trips 7c, Which engageone of the arms H2 and rock the shaft H' back and forth. The shiftingrod K is preferably connected with the powershaft by means of a pitmanand eccentric, so that it operates in unison with the piston, as shownon the lower engine in Fig. l, and, if desired, this shifting rod may beconnected with the cross-head, as shown on the upper engine in Fig. l.One or more balance-wheels are mounted upon the power-shaft, and apulley is also mounted thereon, byv means of Which power is transmittedto any desired point. The water or other operating iiuid is supplied tothe chest by means of a pipe L, said pipe being provided with a suitablecut off valve l, by means of which the supply can be regulated or cutoff entirely.

In operation the water is passed through the pipe L into the valve-chestB, and from here it passes into the cylinder and operates the piston E.As the piston moves the shaft D is moved, the slide-valve reversed, andalso the vibrating valve G, so that the water passes from the chest tothe opposite side ofthe piston, reverses its movement, and forces thewater back of it out through the ports g and f into the chamber A',whence it escapes. These operations are continued, the piston beingforced backward and forward, and as it does so the slide and vibratingvalves are also reversed, sothat a fresh supply of water can be let inand the exhaust-water let out.

IOO

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is-

l. In a hydraulic engine, the combination with a cylinder of theexhaust-chambers at each end, a pivoted vibratingvalve located at cachend of the cylinder, the piston and means for operating the same,rock-shafts and fingers for vibrating the valves, and means connectedwith the piston-operating mechanism for operating the rock-shafts,substantially as shown and described.

2. In a hydraulic engine, the combination with a cylinder and its pistonof the exhaustchambers at each end, the valve-seats having radial ports,the vibrating valves having radial ports, the rock-shafts, arms at eachendl one of which engages the vibratin g valve, the others beingconnected by a rod, the shifting rod and trips thereon all of said partsbeing arranged and operated substantially as shown and described.

The combination With the cylinder and piston of the exhaust-chambers,the seats having radial ports, the valves having radial ports, the armsengaging the valves, the rockshafts to which they are attached, the armsupon the outer end of shafts, the rod connecting said outer arms, theshifting rod and trips, the piston-rod and cross-head, pitman and drivenshaft all arranged substantially as shown and described.

In testimony whereof I affix my signature in presence of tWo Witnesses.

JAMES N. IADDOCK.

W'itnesses:

N. H. ROBERTS, PERCY FALKINBURG.

